Smoke-consuming furnace.



P ATENTED 0GT 27, 1903. LuU. MOONEY. SMOKE CONSUMING FURNACE.

APPLICATION IILBD JAN. 26. 1903.

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PATENTED OUT. 27. 1903.

L. c. MOONEY. SMOKE OONSUMING PURNAGB.

APPLICATION FILED JAN. 26. 1903.

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i iat UNITED STATE Patented October 27, 1903.

PATENT. OFFICE.

SMOKE-CONSU MlNGFURNACE.

SPECIFICATION forming part of Letters Patent No. 742,208, dated October27, 1903. Application filed January 26, 1903. Serial No. 140,632.llldmodel.)

T0 at whom, it may concern:

Be it known that I, LAWRENCE O. MOONEY, a citizen of the United States,residing at Montgomery, in the county of Montgomery and State ofAlabama, have invented certain new and useful Improvements inSmoke-Consuming Furnaces, of which the following is a specification.

This invention relates to means to assist perfect combustion, therebyeconomizing in fuel and preventing the giving off of dense clouds ofsmoke, which is highly objectionable in cities and towns. The inventionalso intensifies the heat, whereby it is possible to obtain a greateramount of steam from a given quantity of fuel in a definite period oftime.

The invention is designed for all types of furnaces,whether portable orstationary,vertical or horizontal, and enables the successful use of anykind offuel.

For a full description of the invention and the merits thereof and alsoto acquire a knowledge of the details of construction of the means foreffecting the result reference is to be had to the following descriptionand drawings hereto attached.

While the essential and characteristic fea invention is illustrated inthe accompanying drawings, in which- Figure 1 is a side view of alocomotive-boiler embodying the invention. Fig. 2 is a plan sectionabout on the line X X of Fig. 1. Fig. 3 is a vertical centrallongitudinal section.

Fig. 4 is a detail view showing a nozzle on an" enlarged scale.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

The invention, while applicable to any pattern of steam-boiler furnace,is illustrated in connection with a boiler of the locomotive type, sinceit is primarily designed for this particular style of boiler. Thelocomotiveboiler is of ordinary construction and is provided at one endwith a smoke-chamber 1 and at the opposite end with the firebox 2, theintermediate portion 3 being occupied by the bank of fiues or tubes. Thefire-box is surrounded at its top and four sides by a waterspace in theaccustomed manner, the fuel being fedthrough the door-opening 4 in theend wall. A series of water-tubes span the angle formed between thecrown-sheet of the furnace and the'wall 5 and communicate at their endswith the water-space, so as to establish circulation. These water-tubessupport tiles 6, of refractory material, constituting a baffle. Theintermediate portion 7 of the watertubes inclines, and the'terminalportions are bent to extend vertically, as shown at 8, and horizontally,asshown at 9, and are firmly joined to the crown-sheet 10 and wall 5 inthe usual manner.

The end wall of the furnace, provided with the door-opening 4:,comprises the spaced plates 11 and 12 and is provided'with a series ofnozzles 13, extended across the space and joined to the plates :11 and12 in any substantial manner. The inner ends of the nozzles are providedwith diverged openings 14, through which the smoke-consuming mediumescapes in diverged jets. The nozzles 13 are arranged in 'a horizontalline and about in the plane of'the topmost tile or upper portion of thebaffle, whereby the jets are deflected downwardlyand create an eddy, asindicated by the arrows in Fig. 3. Hot air and steam are supplied to thenozzles, the steam-pipe 15 being connectedat one end with up steam-domeof the boiler and at its opposite end with one of the headers 16, fromIn the operation of the invention cold air from a point exterior to theboiler is supplied to the radiator or coil 18 and is heated bylthe wasteproducts of combustion throughthe smoke-space to the stack',.t he airfrom the coil being further heated in its passage through the pipe 17,located in the steamspace of the boiler and entering the header 16,where it is met and commingles with steam supplied to said header bymeans of the pipe 15 in the manner stated. The steam and air are mixedin the header and are delivered into the combustion-chamber of thefire-box in jets and, striking the baffie, which has been intenselyheated practically to a point of incandescence, promotes combustion ofthe particles of free carbon by direct contact therewith, whereby as aresult little or no smoke or carbon passes ofi from the stack and thegases are united, and thereby intense heat is the result.

The inclination of the battle and the relative arrangement of the nozzlethereto are essential features to the successful operation of theinvention.

Having thus described the invention, what is claimed as new is In asteam-boiler furnace, having a fire-box at one end and a srnoke-space atthe other end, a coil located in the smoke-space, and means forsupplying cold air to the said coil,

. a header disposed adjacent the fire-box, a

hot-air pipe extending through the steamspace of the boiler andconnecting the coil and header, a pipe connecting the header with thesteam-dome of the boiler, a series of water-tubes disposed within thefire-box having their ends connected with the crownsheet and one of thevertical walls and having theintermediate portions thereof inclined andthe terminal portions bent to extend respectively in vertical andhorizontal directions, tiles supported above the said tubes and alongthe inclined portions thereof, nozzles inwardly extended from the headeraforementioned and into the combustion-chamber of the firebox, saidnozzles being arranged to deliver jets against the upper portion of thewater-tubes within thefire-box, substantially as described.

In testimony whereof I atlix my signature in presence of two witnesses.

LAWRENCE C. MOONEY. [It s] \Vitnesses:

LEW A. SANDERSON, BENJ. Knnw.

